Malicious Office (OLE) / .DOC — malware analysis report

Static analysis result for SHA-256 8448dce775043e0f…

MALICIOUS

Office (OLE) / .DOC

113.0 KB Created: 2015-10-26 08:24:00 Authoring application: Microsoft Office Word First seen: 2022-11-25
MD5: b3ba0ba15ab962c29b95488ef6ff9fa2 SHA-1: 265693693c340eb22dea2f7d6816efd76fe93562 SHA-256: 8448dce775043e0fe09bf0dadaf7c7dabf901c129c503ef7f2668e4e2b6766aa
342 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File T1105 Ingress Tool Transfer T1059.001 PowerShell

The critical heuristic 'OLE_VBA_HTTP_DROP_EXEC' indicates that the VBA macros download and write a file to disk. The 'OLE_VBA_SHELL' and 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristics confirm that this downloaded file is likely executed. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document is designed to trick the user into opening a password-protected archive, a common tactic for bypassing security controls.

Heuristics 9

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • VBA downloads and writes a file to disk critical OLE_VBA_HTTP_DROP_EXEC
    VBA reads an HTTP response body and writes it to disk (ADODB.Stream SaveToFile). Combined with the auto-exec/Shell paths this is a download-drop dropper even when the COM ProgIDs are built dynamically to evade keyword scanning.
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
25141c04cc8417c42cdba406373d1a327f14b8fbfadb55c4d6a9aede5443a0a8		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 104643 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.